Book Image

Developing Middleware in Java EE 8

Book Image

Developing Middleware in Java EE 8

Overview of this book

Middleware is the infrastructure in software based applications that enables businesses to solve problems, operate more efficiently, and make money. As the use of middleware extends beyond a single application, the importance of having it written by experts increases substantially. This book will help you become an expert in developing middleware for a variety of applications. The book starts off by exploring the latest Java EE 8 APIs with newer features and managing dependencies with CDI 2.0. You will learn to implement object-to-relational mapping using JPA 2.1 and validate data using bean validation. You will also work with different types of EJB to develop business logic, and with design RESTful APIs by utilizing different HTTP methods and activating JAX-RS features in enterprise applications. You will learn to secure your middleware with Java Security 1.0 and implement various authentication techniques, such as OAuth authentication. In the concluding chapters, you will use various test technologies, such as JUnit and Mockito, to test applications, and Docker to deploy your enterprise applications. By the end of the book, you will be proficient in developing robust, effective, and distributed middleware for your business.
Table of Contents (18 chapters)
Title Page
Copyright and Credits
Dedication
Packt Upsell
Contributors
Preface
Index

Customizing naming strategies


Rather than configuring the property name in the JSON string for each attribute specifically, you can define a general naming strategy globally to be applied on all the JSON attributes. This is done by using the property naming strategy option in the jsonb configuration object, while creating the jsonb object. Let's see an example of this:

public class Movie { 
 
    private long id; 
    private String title; 
    private int productionYear; 
 
    // getters and setters here 
 
} 
 
JsonbConfig config =  
       new JsonbConfig() 
.withPropertyNamingStrategy 
                    (PropertyNamingStrategy.UPPER_CAMEL_CASE) 
              .withFormatting(true); 
Jsonb jsonb = JsonbBuilder.create(config); 
 
Movie movie = new Movie(); 
movie.setId(15); 
movie.setTitle("Beauty and The Beast"); 
movie.setProductionYear(2017); 
 
String json = jsonb.toJson(movie); 
System.out.println(json); 

As you can see in the previous example, we have used the withPropertyNameingStrategy...